Lathe tool-holder.



J. G. BAKER. LATHE TOOL HOLDER. APPLICATION TILED APLB, 1911.

1,011,716, v PatentedDec.12,191 1 L,

- 3mm QYOSeZJZKQBQiW x I f M m screw, carried by the tool post of the lathe .rosnrn 6. 311x33; orvmEnANn, NEW JERSEY.

Liairrm TOOL-HOLDER.

Specification of Letters Patent.

Applicationfiled April s, 1911. SerialNo. 619,304.

To all whom it may concern:

Be it. known that I, J osnrn .G. BAKER, a citizen of the United States, residing at' Vine-land, in the county of Cumbcrlandand State of New Jersey, have invented a cer tain new and useful Improvement in Lathe TooLHolders, of which the following is a specification.

My invention relates to new and useful improvements in lathe tool holders and has for its object to provide an exceedingly which will grip'and hold ditt'ercnt kinds of tools, such as right and.left hand side tools and turning 'coc swhich are to be used 11] a tool post of a lathe. pla-ners or shapers.

The device will be quite inexpensive in the cost. of manufacture and of very" few parts, so that there will becvery little to get. out of order, will be strong and durable and will'be long-livml.

Another object of the invention is to pro-' vide atool holder formed of two principal parts, fastened together and so constructed as to give the proper pitch to the tool and also to givethe proper clearance between the tool and the work and permit the. use of tools made from 'difierentsizes of steel.

A still further object of the invention is to produce a lathe tool holder which will grip the tool throughout the greater portion of its length with the exception of the, cutting edge, said tool holder to be clamped upon the tool so that said tool will he held firmly in place by the pressure of the clamping and by gripping the tool for approximately its entire length said tool. will beprevcnted from moving or chattering while being used, thereby accomplishing more accurate and perfect work than with. the ordinary tool holder. 1 I

A still further object of the invention is,

to provide a simple and inexpensive tool which maybe readily inserted and held in my improved tool holder.

With these ends. in view, this invention consists in the details of construction and combination of elements hereinafter setforth-andthen specifically designated by the'claims.

In order that those skilled in the artto which this invention a pertains may understand how to make an u'sethe same, I will describe its construction in detail, referring by letter to the accompanying drawing forming a part of this specification, in Wl11Cl'1- Figure 1, is an end view of my improved tool holder and tool, showing them clamped in the tool post of a lathe. Fig. 2, a side elevation of ,the tool holder of the tool,.and Fig. 3, an end view of the tool holder, one of the fastening members being removed. Fig. 4, a section at the line ww of Fig. 2,.

. looking in the dircctionof the arrow. simple and ettective -device of this character 'bodicd, A and B represent two sections of my improved tool holder, each of said secln carrying out my invention as here emtio ns having its inner face formed at an angle to their outer faces, as indicated by a inner faces of these sections is formed a groove 0 which is laterally produced at an angle to. the side faces of the sections as clearly shown in Fig. 3.

in the larger end of each sction is formed a longitudinal screw receiving opcningD andin' the-outer faces at the smaller ends of each of these sections is produced a vertical scrmvreceivmg opening E.

1 denotes the attaching members, each consisting of an L-sbapcd plate. the longer leg of which rests against. the ends of the sections and arc'heldiu place by the screws G and II. The screw G passing through a slot l. in the longer leg of the attaching members and into the screw receiving hole '1) in the larger end of the sections. While the screw H passes through the shorter leg of the attaching members into the vertical screw receiving opening I).

To each of the attaching members is formed an aperture J, the side walls of which are at an angle to the edges of the attaching members, so that said aperture corresponds with the space between the inner faces of the sections, thus permitting the tool K to pass through the apertures into thespace between the'section for clamping 0 so as to give the greatest ad ustment between in position. 'lheaperture J isto be ma the sections permitted by the slot l. The tool K is produced-from a rectangular bar of metal, generally square in cross section Patented Dec. 12, 1911.

and because of the lateral angle of the slot Cit is unnecessary to grind the tool to produce a clearance between the lower edge of upper section,

gular sections,

the tool and th'e w0rk,.while the longitudinal pitch of "the groove gives the desired pitch to the tool.

Thus a tool is roduced' for this tool holder which will 4 l of the small amount of work required to form it. After the tool has been phnred iii the holder the tool holder is' thenslipped into the lathe tool post M, and held in place by the clamp screw N, the. inner end of which jamsagainst the outer faceof the forcing it downward and securely clamping the tool -l)et\veen the two sections the entire. length of the holder.

'A tool holder made in this manner is reversible and invertible to accommodateboth right and left hand tools, and each tool to be used in the holder maybe double ended, each end having a right or left hand cutting edge, or one end may have a right hand cutting edge while theother has a left hand cutting edge, or both ends may be the same, if desired. 4

Of course I do not wish to be limited to the exact details of construction as here shown, as these may be varied within the limits of the appended claims without de-. parting from the spirit of my invention.

Having thus fully described'my invention, what'I claim as new and useful,

1. A tool holdercomprising two trianthe inner faces of which are formed at an anglerto the side faces of said sections, and means for holding said sections together in order that a tool may be clamped between the inner facesl 2. A tool holder comprising two triangular sections, each section having a groove formed in its inner face at an angle to the side faces of said sections, and means attachedto the ends of said sections for fastening them together. I

3. A tool holder comprising two triangula r sections, each section having a groove formed in its inner face at an angle to the side-faces of'said sections, L shaped attaching members, each of which has a longitudinal slot formed in the longer leg, screws passing through the shorter legs of said attaching members for'fastening them to one of the sections, and other screws passing through the slots within the longer legs into the section, also for fastening them to one of said sections as shown, and described.

4. In combination, a tool holder adapted to rest in the receiver of a tool post and be held in place by the tool ,,p ost screw, said Inexpensive beeausee l t having a cut mg tool holdercomprising a. pair of triangular ,sections, the. angular faces resting adjacent one another,"each ofsaid angular or inner faces having 'rooveformed therein at an'a'ngleyto the" sidefaces of the sections, a tool comprising a rectangular bar, each end edge, said bar adapted to rest within the grooves, which, because of their"position.to the side walls of the tions, will give the tools the proper pitch and clearance, attaching members each having a rectangular aperture formed therein, theside walls of said aperture being pro- .luced-at the angles to the edges of the attaching members, said apertures adapted to aline with the space between the sections,-

and means for fastening the attaching memberstothe'sections.

A tool holder com 'irising two sections,

each section having itsinner face formed at an angle to its outer face and provided with a groove for running parallel with the angular face, and means attached to the ends of the sections for holding the latter together.

i G. A tool holder consisting of two tri angularsections, the inner f ace of each section having a groove therein running at an angle to the outer face of each section and from end. to end, and means through which pass the ends of-the tool carried by the holder for fastening the sections together.

71A tool holder consisting of two triangularscctions, the inner face of each section having a groove therein running at .an angle to the outer face of each section and front end to end, the walls of said groove being formed at an angle to the facesof said se tions, and means fastened to the end of one section amlm-erlying the outer face of the adjacent section and attached thereto for holding said sections together.

8. As a new article of manulacture, a tool holder consisting of two sections, each section having an angular face in which is formed a groove, the side walls of said groove lying at an angle to the law-s of the section, and means for holding said'sections together.

I 'to tiin'iony whereof, I have hereunto ellixed my signature in the presence of two subscribing witnesses.

.iosnrn o. ni -noon.

\Vi tnesses Enw. NV. Aus'rm, M. E. Yos'r. 

